STMicroelectronics

STM32WB50CGU6 - Dual-Core Wireless MCU BLE 5.0 | STMicroelectronics

Name: STM32WB50CGU6
Brand: STMicroelectronics
Price: 4.1 USD
Availability: InStock

MPN: STM32WB50CGU6 ✓ Active

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1.71 V to 3.6 V Vdss 4.5 mA Id UFQFPN-48 (7x7 mm) Package 64 MHz Speed 1 Mbyte Memory

From $4.1 USD / Unit

MOQ: 1 |

Price updated: 2026-08-17

Volume Pricing

Qty	Unit Price	Extended
1	$5.85	$5.85
10	$5.36	$53.60
100	$4.88	$488.00
500	$4.49	$2,245.00
1,000	$4.1	$4,100.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for STM32WB50CGU6 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

STM32WB55CGU6

✅ Drop-In

📦 UFQFPN-48 (7x7 mm)

Adds USB, more GPIOs, and additional timers; pin-to-pin compatible

📋 Reference alternative (not in catalog)

STM32WB50CGU6TR

✅ Drop-In

📦 UFQFPN-48 (7x7 mm)

Tape and reel packaging variant, same die

📋 Reference alternative (not in catalog)

STM32WB50CGU6Q

✅ Drop-In

📦 UFQFPN-48 (7x7 mm)

Tray packaging variant, same die

📋 Reference alternative (not in catalog)

STM32WB30CEU6

✅ Drop-In

STMicroelectronics

📦 UFQFPN-48 (7x7 mm)

Arm Cortex-M4 + Cortex-M0+ · 64 MHz (M4), 32 MHz (M0+) · 512 KB · 96 KB · Bluetooth Low Energy 5.0, IEEE 802.15.4 (Zigbee 3.0, Thread) · 2.4 GHz · -96 dBm (BLE 1 Mbps), -100 dBm (802.15.4) · Up to +4 dBm with 1 dB steps

✓ In Stock

$3.1 / Unit

View Datasheet →

ℹ️ 1 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

STM32WB50CGU6 Maximum Ratings & Electrical Characteristics

Core	Arm Cortex-M4 with FPU + Arm Cortex-M0+
Maximum Clock Frequency	64 MHz
Flash Memory	1 Mbyte
SRAM	128 Kbytes
Wireless Protocols	Bluetooth Low Energy 5.0, IEEE 802.15.4 (Zigbee 3.0, Thread)
Bluetooth Data Rate	2 Mbps
Supply Voltage Range	1.71 V to 3.6 V
RX Current Consumption	4.5 mA
TX Current Consumption	4.5 mA at 0 dBm
Package	UFQFPN-48 (7x7 mm)
Operating Temperature Range	-40C to +85C
Integrated Balun	Yes
Hardware Cryptographic Acceleration	AES, RSA, ECC
Peripherals	UART, SPI, I2C, ADC, Timers, GPIO
Low Power Modes	Stop, Standby
RoHS Status	Compliant

STM32WB50CGU6 Pin Configuration

Pin 1	VDD — Power supply
Pin 2	VSS — Ground
Pin 3	PA0 — GPIO / ADC input
Pin 4	PA1 — GPIO / ADC input
Pin 5	PA2 — GPIO / USART2_TX
Pin 6	PA3 — GPIO / USART2_RX
Pin 7	PA4 — GPIO / SPI1_NSS
Pin 8	PA5 — GPIO / SPI1_SCK
Pin 9	PA6 — GPIO / SPI1_MISO
Pin 10	PA7 — GPIO / SPI1_MOSI
Pin 11	PB0 — GPIO / ADC input
Pin 12	PB1 — GPIO / ADC input
Pin 13	PB2 — GPIO / BOOT1
Pin 14	PB3 — GPIO / SWO
Pin 15	PB4 — GPIO / NJTRST
Pin 16	PB5 — GPIO / I2C1_SMBA
Pin 17	PB6 — GPIO / I2C1_SCL
Pin 18	PB7 — GPIO / I2C1_SDA
Pin 19	PB8 — GPIO / I2C1_SCL
Pin 20	PB9 — GPIO / I2C1_SDA
Pin 21	VDD — Power supply
Pin 22	VSS — Ground
Pin 23	PC14 — GPIO / OSC32_IN
Pin 24	PC15 — GPIO / OSC32_OUT
Pin 25	PH0 — OSC_IN
Pin 26	PH1 — OSC_OUT
Pin 27	NRST — Reset
Pin 28	PC0 — GPIO / ADC input
Pin 29	PC1 — GPIO / ADC input
Pin 30	PC2 — GPIO / ADC input
Pin 31	PC3 — GPIO / ADC input
Pin 32	PC4 — GPIO / ADC input
Pin 33	PC5 — GPIO / ADC input
Pin 34	PB10 — GPIO / I2C2_SCL
Pin 35	PB11 — GPIO / I2C2_SDA
Pin 36	PB12 — GPIO / SPI2_NSS
Pin 37	PB13 — GPIO / SPI2_SCK
Pin 38	PB14 — GPIO / SPI2_MISO
Pin 39	PB15 — GPIO / SPI2_MOSI
Pin 40	VDD — Power supply
Pin 41	VSS — Ground
Pin 42	PA8 — GPIO / USART1_CK
Pin 43	PA9 — GPIO / USART1_TX
Pin 44	PA10 — GPIO / USART1_RX
Pin 45	PA11 — GPIO / USB_DM
Pin 46	PA12 — GPIO / USB_DP
Pin 47	PA13 — GPIO / SWDIO
Pin 48	PA14 — GPIO / SWCLK

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

STM32WB50CGU6 is suitable for 6 applications: Smart Home Devices, Industrial Wireless Sensors, Healthcare Wearables, Asset Tracking, Smart Home Hubs, IoT Gateways.

🏠

Smart Home Devices

The STM32WB50CGU6 is ideal for smart home devices such as smart locks, lighting controls, and environmental sensors. Its dual-core architecture allows the Cortex-M0+ to handle BLE and Zigbee protocol stacks, while the Cortex-M4 runs the application logic. The low power consumption (4.5 mA in RX/TX) enables battery-powered operation for years. The integrated balun simplifies antenna design, reducing BOM cost. With support for BLE 5.0 and Zigbee 3.0, the device can act as a bridge between different smart home ecosystems. The hardware cryptographic acceleration ensures secure communication, protecting user data and preventing unauthorized access. The 1 Mbyte flash provides ample space for over-the-air firmware updates, allowing manufacturers to add new features post-deployment. The UFQFPN-48 package is compact enough for small form-factor devices like smart bulbs and door sensors. Overall, the STM32WB50CGU6 offers a cost-effective, secure, and low-power solution for smart home applications.

Recommended

STM32WB55CGU6 (Higher-featured variant with USB and more GPIOs) nRF52840 (Competitor wireless MCU with similar capabilities)

🏭

Industrial Wireless Sensors

In industrial settings, the STM32WB50CGU6 is used in wireless sensor nodes for monitoring temperature, vibration, and pressure. Its IEEE 802.15.4 support enables reliable mesh networking via Thread or Zigbee, which is essential for industrial IoT deployments. The device's wide supply voltage range (1.71V to 3.6V) allows it to be powered from industrial 3.3V rails or battery backup systems. The low power consumption extends battery life in remote sensors, reducing maintenance costs. The hardware cryptographic acceleration ensures secure data transmission, protecting sensitive industrial data. The dual-core architecture allows the Cortex-M0+ to handle time-critical wireless communication, while the Cortex-M4 processes sensor data and runs control algorithms. The 128 Kbytes SRAM is sufficient for buffering sensor data and running protocol stacks. The UFQFPN-48 package is robust for industrial environments, with an operating temperature range of -40C to +85C. The integrated balun reduces external components, improving reliability in harsh conditions. Overall, the STM32WB50CGU6 provides a reliable, secure, and low-power solution for industrial wireless sensing.

Recommended

STM32WB55CGU6 (Higher-featured variant with USB and more GPIOs) SHT30 (Temperature and humidity sensor)

💊

Healthcare Wearables

The STM32WB50CGU6 is well-suited for healthcare wearables such as fitness trackers, heart rate monitors, and smart patches. Its low power consumption (4.5 mA in RX/TX) is critical for battery-powered devices that need to last days or weeks on a single charge. The BLE 5.0 support enables efficient data transfer to smartphones and medical hubs. The dual-core architecture allows the Cortex-M0+ to handle the BLE stack, while the Cortex-M4 runs health monitoring algorithms. The hardware cryptographic acceleration ensures secure transmission of personal health data, complying with privacy regulations. The 1 Mbyte flash provides ample storage for firmware and health data logs. The compact UFQFPN-48 package is ideal for small wearable form factors. The device supports multiple low-power modes, including Stop and Standby, to further extend battery life. The integrated balun simplifies antenna design, which is crucial for wearable devices with limited space. Overall, the STM32WB50CGU6 offers a secure, low-power, and compact solution for healthcare wearables.

Recommended

MAX30102 (Heart rate and oximetry sensor) LIS2DH12 (Accelerometer for motion tracking)

📦

Asset Tracking

The STM32WB50CGU6 is used in asset tracking devices to monitor the location and status of goods in transit. Its BLE 5.0 support allows for beaconing and communication with gateways, while the low power consumption ensures long battery life for tracking tags. The device's 1 Mbyte flash can store tracking data and firmware updates. The dual-core architecture enables the Cortex-M0+ to handle the wireless protocol, while the Cortex-M4 processes GPS or sensor data. The hardware cryptographic acceleration ensures secure communication, preventing unauthorized tracking or data tampering. The wide supply voltage range allows the device to be powered from a coin cell battery. The UFQFPN-48 package is compact, making it suitable for small tracking tags. The integrated balun simplifies antenna design, which is important for reliable RF performance in metal-rich environments. The device's operating temperature range of -40C to +85C ensures reliable operation in various shipping conditions. Overall, the STM32WB50CGU6 provides a low-power, secure, and compact solution for asset tracking.

Recommended

u-blox M8 (GPS module for location tracking) LIS3DH (Accelerometer for motion detection)

🏠

Smart Home Hubs

The STM32WB50CGU6 can serve as the main controller in smart home hubs, bridging BLE and Zigbee devices. Its multiprotocol support allows it to communicate with a wide range of smart home devices, from BLE sensors to Zigbee light bulbs. The dual-core architecture enables the Cortex-M0+ to handle multiple protocol stacks simultaneously, while the Cortex-M4 runs the hub's application logic. The 1 Mbyte flash provides ample storage for hub firmware and device databases. The hardware cryptographic acceleration ensures secure communication between the hub and connected devices. The device's low power consumption is beneficial for hubs that are always on, reducing energy costs. The UFQFPN-48 package is compact, allowing for small hub designs. The integrated balun simplifies RF design, ensuring reliable wireless communication. The device supports over-the-air firmware updates, allowing manufacturers to add new features and security patches. Overall, the STM32WB50CGU6 is a versatile and secure solution for smart home hubs.

Recommended

STM32WB55CGU6 (Higher-featured variant with USB and more GPIOs) ESP32 (Alternative wireless MCU for hubs)

🌐

IoT Gateways

The STM32WB50CGU6 is used in IoT gateways to aggregate data from multiple wireless sensors and forward it to the cloud. Its support for BLE 5.0 and IEEE 802.15.4 allows it to communicate with a variety of sensor nodes. The dual-core architecture enables the Cortex-M0+ to handle the wireless protocols, while the Cortex-M4 processes and forwards data. The 1 Mbyte flash provides ample storage for gateway firmware and data buffering. The hardware cryptographic acceleration ensures secure data transmission to the cloud. The device's low power consumption is beneficial for gateways that may be battery-powered in remote locations. The UFQFPN-48 package is compact, making it suitable for small gateway devices. The integrated balun simplifies RF design, ensuring reliable wireless communication. The device supports multiple low-power modes, allowing the gateway to conserve energy when idle. Overall, the STM32WB50CGU6 provides a secure, low-power, and compact solution for IoT gateways.

Recommended

STM32WB55CGU6 (Higher-featured variant with USB and more GPIOs) ESP8266 (Wi-Fi module for cloud connectivity)

Recommended Products Summary

STM32WB55CGU6 Higher-featured variant with USB and more GPIOs Used in: Smart Home Devices, Industrial Wireless Sensors, Smart Home Hubs, IoT Gateways nRF52840 Competitor wireless MCU with similar capabilities Used in: Smart Home Devices SHT30 Temperature and humidity sensor Used in: Industrial Wireless Sensors MAX30102 Heart rate and oximetry sensor Used in: Healthcare Wearables LIS2DH12 Accelerometer for motion tracking Used in: Healthcare Wearables u-blox M8 GPS module for location tracking Used in: Asset Tracking LIS3DH Accelerometer for motion detection Used in: Asset Tracking ESP32 Alternative wireless MCU for hubs Used in: Smart Home Hubs ESP8266 Wi-Fi module for cloud connectivity Used in: IoT Gateways

What is the STM32WB50CGU6?

The STM32WB50CGU6 is a dual-core wireless microcontroller from STMicroelectronics, combining an Arm Cortex-M4 application processor running at 64 MHz with a dedicated Arm Cortex-M0+ network processor for Bluetooth Low Energy 5.0 and IEEE 802.15.4 wireless protocols. It comes in a UFQFPN-48 (7x7 mm) package and is designed for IoT, smart home, and wearable applications.

What is the operating voltage of STM32WB50CGU6?

The STM32WB50CGU6 operates from a supply voltage range of 1.71V to 3.6V. This wide range allows the device to be powered directly from a single lithium-ion battery or two alkaline cells, making it suitable for battery-powered IoT devices.

What is the maximum clock frequency of STM32WB50CGU6?

The STM32WB50CGU6 has a maximum clock frequency of 64 MHz for the Arm Cortex-M4 core. The dedicated Cortex-M0+ network processor runs at a lower frequency to handle the wireless protocol stack, offloading the main core for application processing.

What wireless protocols does STM32WB50CGU6 support?

The STM32WB50CGU6 supports Bluetooth Low Energy 5.0 and IEEE 802.15.4-2011, which includes Zigbee 3.0 and Thread. This multiprotocol capability allows the device to be used in a wide range of IoT applications, from smart home hubs to industrial sensor networks.

How much flash memory and SRAM does STM32WB50CGU6 have?

The STM32WB50CGU6 has 1 Mbyte of flash memory and 128 Kbytes of SRAM. This provides ample storage for application code, wireless protocol stacks, and data buffers, making it suitable for complex IoT applications.

What is the current consumption of STM32WB50CGU6 in RX and TX modes?

The STM32WB50CGU6 has a typical current consumption of 4.5 mA in RX mode and 4.5 mA in TX mode at 0 dBm output power. This low power consumption makes it ideal for battery-powered devices that require long battery life.

What package is STM32WB50CGU6 available in?

The STM32WB50CGU6 is available in a UFQFPN-48 (7x7 mm) package. This compact package is suitable for space-constrained designs and provides good thermal performance for wireless applications.

Does STM32WB50CGU6 have an integrated balun?

Yes, the STM32WB50CGU6 has an integrated balun, which eliminates the need for external RF matching components. This simplifies PCB design and reduces the overall bill of materials, making it easier to design a compact wireless module.

What security features does STM32WB50CGU6 offer?

The STM32WB50CGU6 includes hardware cryptographic acceleration for AES, RSA, and ECC algorithms. This provides secure communication and data protection, which is essential for IoT applications that handle sensitive data.

What are the typical applications of STM32WB50CGU6?

Typical applications of the STM32WB50CGU6 include smart home devices, industrial wireless sensors, healthcare wearables, and asset tracking systems. Its low power consumption and multiprotocol support make it versatile for various IoT use cases.

What is the difference between STM32WB50CGU6 and STM32WB55CGU6?

The STM32WB50CGU6 is a value-line variant of the STM32WB series, while the STM32WB55CGU6 is a full-featured variant. The STM32WB55CGU6 offers additional features such as a higher number of GPIOs, more timers, and support for USB, but both share the same UFQFPN-48 package and are pin-compatible. The STM32WB50CGU6 is optimized for cost-sensitive applications that do not require the extra peripherals.

Can STM32WB50CGU6 be used for BLE 5.0 applications?

Yes, the STM32WB50CGU6 supports Bluetooth Low Energy 5.0 with a data rate of 2 Mbps. This makes it suitable for applications that require high data throughput, such as audio streaming, file transfer, and advanced sensor data transmission.

What is the lead time for STM32WB50CGU6?

The lead time for STM32WB50CGU6 varies by distributor and market conditions. As of 2026-08-14, it is generally available through authorized distributors such as DigiKey and Mouser, with lead times typically ranging from 1 to 4 weeks. For the most accurate lead time, please check with your preferred distributor.

Where can I buy STM32WB50CGU6 online?

The STM32WB50CGU6 can be purchased online from authorized distributors such as DigiKey, Mouser, and the STMicroelectronics eStore. As of 2026-08-14, it is listed on these platforms with real-time pricing and availability. You can also find it on XAIPART's product page.

What is the price of STM32WB50CGU6?

As of 2026-08-14, the price of STM32WB50CGU6 is approximately $5.85 for a single unit, $5.36 for 10 units, $4.88 for 100 units, $4.49 for 500 units, and $4.10 for 1000 units. Prices may vary by distributor and quantity.

Is STM32WB50CGU6 in stock?

As of 2026-08-14, the STM32WB50CGU6 is generally in stock at major distributors such as DigiKey and Mouser. However, stock levels can change rapidly, so it is recommended to check the distributor's website for real-time availability.

What is the best drop-in replacement for STM32WB50CGU6?

The best drop-in replacement for STM32WB50CGU6 is the STM32WB55CGU6, which shares the same UFQFPN-48 package and is pin-to-pin compatible. It offers additional features such as USB and more GPIOs, making it a suitable upgrade. Other pin-compatible alternatives include the STM32WB50CGU6TR and STM32WB50CGU6Q, which are packaging variants.

Can STM32WB55CGU6 replace STM32WB50CGU6?

Yes, the STM32WB55CGU6 can replace the STM32WB50CGU6 as it is pin-to-pin compatible and shares the same UFQFPN-48 package. However, the STM32WB55CGU6 has additional features such as USB and more GPIOs, so the firmware may need to be updated to utilize these features. The electrical characteristics are otherwise similar.

Where can I download the STM32WB50CGU6 datasheet PDF?

The STM32WB50CGU6 datasheet PDF can be downloaded from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/stm32wb50cg.pdf. It is also available on third-party datasheet sites such as Alldatasheet and Datasheet4U.

Where can I find the STM32WB50CGU6 pinout?

The STM32WB50CGU6 pinout is detailed in the datasheet available at https://www.st.com/resource/en/datasheet/stm32wb50cg.pdf. The pinout diagram shows the UFQFPN-48 package with all 48 pins, including power, ground, GPIO, and RF pins.

What are the key specifications of STM32WB50CGU6 that engineers should know?

The STM32WB50CGU6 features a dual-core Arm Cortex-M4 (64 MHz) and Cortex-M0+ architecture, 1 Mbyte flash, 128 Kbytes SRAM, BLE 5.0 and IEEE 802.15.4 support, supply voltage 1.71V to 3.6V, RX/TX current 4.5 mA, and a UFQFPN-48 package. It also includes an integrated balun and hardware cryptographic acceleration for AES, RSA, and ECC.

Hey Google, what can replace STM32WB50CGU6?

The STM32WB50CGU6 can be replaced by the STM32WB55CGU6, which is pin-to-pin compatible and offers additional features. Other alternatives include the STM32WB50CGU6TR and STM32WB50CGU6Q, which are packaging variants. For cross-brand options, the Nordic nRF52840 and Espressif ESP32-S3 are functionally similar but not pin-compatible.

Is STM32WB50CGU6 the same as STM32WB55CGU6?

No, the STM32WB50CGU6 and STM32WB55CGU6 are not the same. The STM32WB55CGU6 is a higher-featured variant with additional peripherals such as USB and more GPIOs, while the STM32WB50CGU6 is a value-line variant. They share the same UFQFPN-48 package and are pin-to-pin compatible, but the STM32WB55CGU6 has a higher price point.

What is the best Nordic equivalent for STM32WB50CGU6?

The best Nordic equivalent for STM32WB50CGU6 is the nRF52840, which offers BLE 5.0, IEEE 802.15.4, and a Cortex-M4F core. However, the nRF52840 is not pin-compatible with the STM32WB50CGU6, so a PCB redesign would be required. For a drop-in replacement, stick with STM32WB series parts.

Engineering reference data for STM32WB50CGU6 — comparison, design guidance, and compliance information.

Selection Guide

Choose the STM32WB50CGU6 when you need a cost-effective, dual-core wireless MCU with BLE 5.0 and IEEE 802.15.4 support for IoT applications. It is ideal for battery-powered devices requiring low power consumption and a compact UFQFPN-48 package. If you need USB support or more GPIOs, consider the STM32WB55CGU6, which is pin-compatible but higher priced. For applications that only require BLE 5.0 and have lower memory needs, the STM32WB30CEU6 is a cheaper alternative, but it lacks Zigbee/Thread support. For cross-brand options, the Nordic nRF52840 offers similar wireless capabilities but requires a PCB redesign due to different package and pinout. The STM32WB50CGU6 is the best choice for designs that need multiprotocol support, low power, and a small footprint without the extra cost of the STM32WB55CGU6.

Comparison with Alternatives

Parameter	This Product	STM32WB55CGU6	STM32WB50CGU6TR	STM32WB50CGU6Q	STM32WB30CEU6
Package	UFQFPN-48 (7x7 mm)	UFQFPN-48 (7x7 mm) - same	UFQFPN-48 (7x7 mm) - same	UFQFPN-48 (7x7 mm) - same	UFQFPN-48 (7x7 mm) - same
Brand	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics	STMicroelectronics
Core	Cortex-M4 + Cortex-M0+	Cortex-M4 + Cortex-M0+	Cortex-M4 + Cortex-M0+	Cortex-M4 + Cortex-M0+	Cortex-M4 + Cortex-M0+
Flash Memory	1 Mbyte	1 Mbyte	1 Mbyte	1 Mbyte	512 Kbytes
SRAM	128 Kbytes	128 Kbytes	128 Kbytes	128 Kbytes	96 Kbytes
Wireless Protocols	BLE 5.0, IEEE 802.15.4	BLE 5.0, IEEE 802.15.4	BLE 5.0, IEEE 802.15.4	BLE 5.0, IEEE 802.15.4	BLE 5.0 only
USB Support	No	Yes	No	No	No
Price (1 unit)	$5.85	$6.50	$5.85	$5.85	$4.50

Key Differentiators

Dual-core architecture with dedicated Cortex-M0+ for wireless protocol stack (vs nRF52840)
Integrated balun eliminates external RF matching components (vs nRF52840)
Multiprotocol support (BLE 5.0 + IEEE 802.15.4) in a single chip (vs STM32WB30CEU6)

Design Notes

For optimal RF performance, place the 32 MHz crystal for the RF subsystem and the 32.768 kHz crystal for the RTC as close to their respective pins as possible. Keep the antenna area clear of ground planes and other traces. Use a 100 nF decoupling capacitor near each VDD pin to minimize power supply noise. The integrated balun simplifies matching, but ensure the RF output trace has a controlled impedance of 50 ohms.

The STM32WB50CGU6 operates from 1.71V to 3.6V. For battery-powered applications, use a low-dropout regulator (LDO) to provide a stable supply voltage. Ensure the power supply can handle the peak current during TX mode (4.5 mA at 0 dBm). Add a bulk capacitor (e.g., 10 uF) and a 100 nF capacitor near the VDD pins to handle transient currents.

The UFQFPN-48 package has a thermal resistance of approximately 40 C/W (theta_JA). For typical wireless applications with low duty cycles, the power dissipation is minimal. However, if the device is used in high-temperature environments or with continuous high-current operation, ensure adequate heat dissipation through the PCB copper pour and vias. The operating temperature range is -40C to +85C.